Introduction of sodium formate, production process of sodium formate

Sodium formate, chemical formula HCOONA·2H2O?, with a slight smell of formic acid. Soluble in water and glycerol.

Slightly soluble in ethanol.

Melting point 253 (anhydrous), toxic. When hot, it decomposes into hydrogen and sodium oxalate. It is used as a camouflage acid in the leather industry, in the chromium tanning method, for catalysts and stabilizing synthetics, and as a reducing agent in the printing and dyeing industry, for the production of insurance powder.

Oxalic acid and formic acid.

Sodium formate chemical formula HCOONA with a density of: , with a slight smell of formic acid. Soluble in water to drink glycerin, slightly soluble in ethanol.

Melting point 253 (anhydrous), non-corrosive, non-flammable, non-toxic. Sodium formate is widely used in the leather industry as a camouflage acid in chromium tanning. In the chemical industry, it can be used as a raw material for a variety of chemicals.

For example, sodium formate can be combined with phosphoric acid to synthesize formic acid and phosphate. Look at the logo.

Sodium formate is used in the leather industry as a camouflage acid, making the leather soft and delicate. It is usually necessary to use a high-quality sodium formate content of more than 95%.

1. It is mainly used for the production of formic acid, oxalic acid and insurance powder.

2.It is used as a reagent, disinfectant and mordant for the determination of phosphorus and arsenic.

3.Preservative. Diuretic effect. It is used in EEC countries, but not in the UK.

4.It is an intermediate in the production of formic acid and oxalic acid, and is also used in the production of dimethylformamide. It is also used in medicine, printing and dyeing industry. It is also a precipitant of heavy metals.

5.It is used in alkyd resin coatings, plasticizers, high explosives, acid-resistant materials, aviation lubricants, adhesive additives.

6.A precipitant of heavy metals, which can form complex ions of trivalent metals in solution. Reagents for the determination of phosphorus and arsenic. It is also used as a disinfectant, astringent, mordant. It is also an intermediate in the production of formic acid and oxalic acid, which is used in the production of dimethylformamide.

7.It is used for nickel-cobalt alloy electrolyte plating.

2]8.Leather industry, camouflage acid in chrome tanning method.

9.It is used as a catalyst and a stable synthetic.

10.Reducing agent in the printing and dyeing industry.

If you want to make sodium formate, you first need to prepare coke, which is the main raw material for making sodium formate, and then the prepared coke should be prepared through the processes of gas and dust removal, water and rock silver washing, decarburization, and dust removal, so as to be able to remove the required carbon monoxide gas. After that, it reacts with sodium hydroxide under heating and pressure to form sodium formate solution. After obtaining the sodium formate solution, it is necessary to carry out evaporation, separation, drying and other processes, so that solid sodium formate products can be generated.

Of course, in actual operation, this is not the only way to make sodium formate, many researchers can also make sodium formate through other production processes, but the way to make sodium formate introduced above is relatively safe, and the purity of sodium formate is relatively high, which belongs to the superior production process.

1. Different compositions: sodium formate is the hydroxide of formic acid, and the chemical formula of formate can be composed of two parts: one is the conventional part of formic acid, and the other is the ionic part containing oxygen, which can be sodium hydroxide, or other ionic substances, such as ammonium salt, calcium salt, etc.

2. The melting point is different: the melting point of sodium formate is 360, while the melting point of formate depends on other ionic parts.

3. Different solubility: sodium formate is soluble in water, ethanol, ether and other solvents, while the solubility of formate depends on other ionic parts.

4. Different functions: sodium formate can be used to inhibit the growth of yeast, while formate can be used to adjust the pH value, improve the taste of food, maintain the freshness of food, fermentation, etc. Ponnahu.

It's not the same.

Formic acid is one of the basic organic chemical raw materials, which is widely used in pesticides, leather, dyes, pharmaceuticals and rubber industries. Formic acid can be directly used in fabric processing, tanning, textile printing and dyeing and green fodder storage, and can also be used as metal surface treatment agents, rubber additives and industrial solvents. In organic synthesis, it is used to synthesize various formate, acridine dyes and formamide series pharmaceutical intermediates.

Sodium formate is mainly used in the leather industry, and the main uses are as follows:

1) It is mainly used for the production of formic acid, oxalic acid and insurance powder, etc., and is also used for the production of dimethylformamide. It is also used in medicine, printing and dyeing industry.

2) used as a reagent, disinfectant and mordant for the determination of phosphorus and arsenic;

3) Used as a preservative. Use 4: used for alkyd resin coatings, plasticizers, and spirits;

4) Used as explosives, acid-resistant materials, aviation lubricants, adhesive additives.

Unlike formic acid, formic acid is formic acid, and sodium formate is the product of reaction with sodium.

Physical and chemical properties Chinese name: sodium formate English name: sodium formatehcoona Commonly known as:

Sodium Formate Chemical Formula: CHNAO2 CAS Number: 141-53-7 EINECS Number:

205-488-0 Molecular Formula: HCOONA Molecular Weight: Appearance:

At room temperature, it is a white or light yellow crystalline solid, slightly deliquescent. Solubility: It is soluble in water and glycerol, slightly soluble in ethanol, octanol, insoluble in ether.

Melting Point: 253°C Boiling Point: 360°C Density(20):

Regulatory Information: This product is not regulated.

Sodium formate is a weak salt, which can react with strong acids to form formic acid, and the structure of sodium formate contains aldehyde groups, which have the properties of aldehydes, and can undergo silver mirror reaction.

a. Formic acid is a weak acid, diluted with water, which can promote the ionization of formic acid, resulting in an increase in the number of hydrogen ions in formic acid solution, so it is wrong

b、c（h+

For the same amount of hydrochloric acid and formic acid (HCOOH) solution, the amount of hydrochloric acid is less than the amount of formic acid, and the amount of hydrochloric acid is less than that of formic acid, so it is correct

c. The initial reaction rate of the reaction between acid and metal is related to the concentration of hydrogen ions, and the initial concentration of hydrogen ions in the two solutions is equal, so the initial reaction rate of hydrochloric acid and formic acid is the same as that of the same mass of aluminum powder, so it is wrong

d、c（h+

In the same amount of hydrochloric acid and formic acid (HCOOH) solution, the amount of hydrochloric acid is less than the amount of formic acid, so the amount of hydrogen produced by formic acid is more than that of hydrochloric acid when it reacts with excess zinc particles, so it is wrong

Therefore, choose B